#给导入的模块或者功能取别名

#给模块起别名
# import math as lh_math
# print(lh_math.fabs(-11.2))


#from模块import函数,类,变量.. as别名
from math import fabs as lh_abs
from random import choice as lh_choice

print(lh_abs(-12.1))
print(lh_choice([100 , 200 , 300]))
